NDLI: Estimating the efficiency of pulsed alternators

Content Provider	IEEE Xplore Digital Library
Author	Landen, D.
Copyright Year	1965
Abstract	The term pulsed alternator is used to describe a type of rotating machine capable of providing short bursts of high current. Output power is intended to come from energy stored in the form of rotational inertia. This is done in a three-step process. The field coil on the rotor is charged using a process called bootstrapping . When the desired charge is reached, the circuit is switched to the load, and any magnetic energy left in the field coil is used to charge the flywheel. The efficiency of pulsed alternators, a very important design metric, is dependent on many geometric and material parameters, on the load, and on the type of input excitation. This paper shows the derivation of the steady-state efficiency of a pulsed alternator connected to a static load based on Park's model of a machine. The steady-state efficiency is then compared with the instantaneous and net efficiency of a simple discharge.
Sponsorship	IEEE Magnetics Society
Starting Page	303
Ending Page	307
Page Count	5
File Size	220920
File Format	PDF
ISSN	00189464
Volume Number	41
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Alternators Coils Steady-state Rotating machines Power generation Rotors Magnetic circuits Switching circuits Magnetic switching Flywheels steady-state efficiency Park's model pulsed alternators
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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